code: def myexpand(func, target):
      expanded = expand_func(func)
      if target is not None:
          return expanded == target
      if expanded == func:  # it didn't expand
          return False
  
      # check to see that the expanded and original evaluate to the same value
      subs = {}
      for a in func.free_symbols:
          subs[a] = randcplx()
      return (
          abs(
              func.subs(subs).n()
              - expanded.replace(exp_polar, exp).subs(subs).n()
          )
          < 1e-10
      )
  
imports: from sympy.concrete.summations import Sum
  from sympy.core.function import expand_func
  from sympy.core.numbers import Float, I, Rational, nan, oo, pi, zoo
  from sympy.core.singleton import S
  from sympy.core.symbol import Symbol
  from sympy.functions.elementary.complexes import Abs, polar_lift
  from sympy.functions.elementary.exponential import exp, exp_polar, log
  from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.functions.special.zeta_functions import dirichlet_eta, lerchphi, polylog, riemann_xi, stieltjes, zeta
  from sympy.series.order import O
  from sympy.core.function import ArgumentIndexError
  from sympy.functions.combinatorial.numbers import bernoulli, factorial, genocchi, harmonic
  from sympy.testing.pytest import raises
  from sympy.core.random import test_derivative_numerically, random_complex_number, verify_numerically
label_desc: Use image node_id 7 for calling a global function with example usage: myexpand(func, target) and returns: unknown, unknown, False